I was so glad that the CUHK Information Day 2022 was resumed to be face-to-face again this year. In 2020 and 2021, it was conducted online. Since I started this website in 2015, there has been a post of the Orientation Day in 2015, 2016, 2017, and 2018; where the one in 2019 was cancelled. Each time, I took a photo from Science Centre and there are already five such photos, recording some history and changes.